Risk

High

Date Discovered

September 13, 2006

Description

Microsoft Internet Explorer is prone to a heap-based buffer-overflow vulnerability.
The vulnerability arises because of the way Internet Explorer tries to instantiate certain COM objects as ActiveX controls.
An attacker can exploit this issue to execute arbitrary code within the context of the affected application. Failed exploit attempts will result in a denial-of-service condition.
This issue is similar to, but separate from, the one described in BID 19738 (Microsoft Internet Explorer Daxctle.OCX Spline Method Heap Buffer Overflow Vulnerability).
Microsoft has released information stating that this issue is being exploited publicly in limited attacks.

Technologies Affected

Avaya Messaging Application Server

Avaya S8100 Media Servers

Avaya S8100 Media Servers R10

Avaya S8100 Media Servers R11

Avaya S8100 Media Servers R12

Avaya S8100 Media Servers R6

Avaya S8100 Media Servers R7

Avaya S8100 Media Servers R8

Avaya S8100 Media Servers R9

HP Storage Management Appliance 2.1

Microsoft Internet Explorer 5.0.1

Microsoft Internet Explorer 5.0.1 SP1

Microsoft Internet Explorer 5.0.1 SP2

Microsoft Internet Explorer 5.0.1 SP3

Microsoft Internet Explorer 5.0.1 SP4

Microsoft Internet Explorer 6.0

Microsoft Internet Explorer 6.0 SP1

Microsoft Windows 2000 Advanced Server

Microsoft Windows 2000 Advanced Server SP1

Microsoft Windows 2000 Advanced Server SP2

Microsoft Windows 2000 Advanced Server SP3

Microsoft Windows 2000 Advanced Server SP4

Microsoft Windows 2000 Datacenter Server

Microsoft Windows 2000 Datacenter Server SP1

Microsoft Windows 2000 Datacenter Server SP2

Microsoft Windows 2000 Datacenter Server SP3

Microsoft Windows 2000 Datacenter Server SP4

Microsoft Windows 2000 Professional

Microsoft Windows 2000 Professional SP1

Microsoft Windows 2000 Professional SP2

Microsoft Windows 2000 Professional SP3

Microsoft Windows 2000 Professional SP4

Microsoft Windows 2000 Server

Microsoft Windows 2000 Server Japanese Edition

Microsoft Windows 2000 Server SP1

Microsoft Windows 2000 Server SP2

Microsoft Windows 2000 Server SP3

Microsoft Windows 2000 Server SP4

Microsoft Windows Server 2003 Datacenter Edition

Microsoft Windows Server 2003 Datacenter Edition Itanium

Microsoft Windows Server 2003 Datacenter Edition Itanium SP1

Microsoft Windows Server 2003 Datacenter Edition Itanium SP1 Beta 1

Microsoft Windows Server 2003 Datacenter Edition SP1

Microsoft Windows Server 2003 Datacenter Edition SP1 Beta 1

Microsoft Windows Server 2003 Datacenter x64 Edition

Microsoft Windows Server 2003 Enterprise Edition

Microsoft Windows Server 2003 Enterprise Edition Itanium

Microsoft Windows Server 2003 Enterprise Edition Itanium SP1

Microsoft Windows Server 2003 Enterprise Edition Itanium SP1 Beta 1

Microsoft Windows Server 2003 Enterprise Edition SP1

Microsoft Windows Server 2003 Enterprise Edition SP1 Beta 1

Microsoft Windows Server 2003 Enterprise x64 Edition

Microsoft Windows Server 2003 Standard Edition

Microsoft Windows Server 2003 Standard Edition SP1

Microsoft Windows Server 2003 Standard Edition SP1 Beta 1

Microsoft Windows Server 2003 Standard x64 Edition

Microsoft Windows Server 2003 Web Edition

Microsoft Windows Server 2003 Web Edition SP1

Microsoft Windows Server 2003 Web Edition SP1 Beta 1

Microsoft Windows XP

Microsoft Windows XP 64-bit Edition

Microsoft Windows XP 64-bit Edition SP1

Microsoft Windows XP 64-bit Edition Version 2003

Microsoft Windows XP 64-bit Edition Version 2003 SP1

Microsoft Windows XP Home

Microsoft Windows XP Home SP1

Microsoft Windows XP Home SP2

Microsoft Windows XP Media Center Edition

Microsoft Windows XP Media Center Edition SP1

Microsoft Windows XP Media Center Edition SP2

Microsoft Windows XP Professional

Microsoft Windows XP Professional SP1

Microsoft Windows XP Professional SP2

Microsoft Windows XP Professional x64 Edition

Microsoft Windows XP Tablet PC Edition

Microsoft Windows XP Tablet PC Edition SP1

Microsoft Windows XP Tablet PC Edition SP2

Nortel Networks CallPilot 1002rp

Nortel Networks CallPilot 200i

Nortel Networks CallPilot 201i

Nortel Networks CallPilot 702t

Nortel Networks CallPilot 703t

Nortel Networks Centrex IP Client Manager 7.0.0

Nortel Networks Centrex IP Client Manager 8.0.0

Nortel Networks Centrex IP Client Manager 9.0

Nortel Networks Centrex IP Element Manager 7.0.0

Nortel Networks Centrex IP Element Manager 8.0.0

Nortel Networks Centrex IP Element Manager 9.0.0

Nortel Networks Contact Center Administration

Nortel Networks Contact Center Express

Nortel Networks Contact Center Manager Server

Nortel Networks Enterprise VoIP TM-CS1000

Nortel Networks Multimedia Comm MCS5100

Nortel Networks Multimedia Comm MCS5200

Nortel Networks Self-Service MPS 100

Nortel Networks Self-Service MPS 1000

Nortel Networks Self-Service MPS 500

Nortel Networks Self-Service Peri Application

Nortel Networks Self-Service Peri IVR

Nortel Networks Self-Service Peri NT Server

Nortel Networks Self-Service Speech Server

Recommendations

Run all software as a nonprivileged user with minimal access rights.

Ensure that all non-administrative tasks, such as browsing the web and reading email, are performed as an unprivileged user with minimal access rights.

Do not follow links provided by unknown or untrusted sources.

Users should never visit sites of questionable integrity or follow links provided by unfamiliar or untrusted sources.

Set web browser security to disable the execution of script code or active content.

Disabling scripting and active content in the Internet Zone may limit exposure to this and other vulnerabilities.

Microsoft released an advisory and fixes to address this issue. Please see the references for more information.

Disclaimer
The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information.

Symantec, Symantec products, Symantec Security Response, and secure@symantec.com are registered trademarks of Symantec Corp. and/or affiliated companies in the United States and other countries. All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners.